3M6Z

Crystal structure of an N-terminal 44 kDa fragment of topoisomerase V in the presence of guanidium hydrochloride

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	APS BEAMLINE 21-ID-G
Synchrotron site	APS
Beamline	21-ID-G
Temperature [K]	78
Detector technology	CCD
Collection date	2008-07-24
Detector	RAYONIX MX-225
Wavelength(s)	0.97872
Spacegroup name	P 21 21 21
Unit cell lengths	63.640, 80.110, 137.220
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	28.900 - 1.400
R-factor	0.16587
Rwork	0.165
R-free	0.18424
Structure solution method	SAD
RMSD bond length	0.009
RMSD bond angle	1.195
Data reduction software	XDS
Data scaling software	SCALA
Phasing software	SHARP
Refinement software	REFMAC (5.2.0019)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	28.900	1.460
High resolution limit [Å]	1.400	1.400
Rmerge	0.048	0.405
Number of reflections	136662
<I/σ(I)>	27.5	5.3
Completeness [%]	98.8	95.5
Redundancy	8.5	7.9

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, HANGING DROP	5.5	303	0.1 M phosphate citrate pH 5.5, 0.15M sodium sulfate, 0.01M MgCl2, 1 M guanidium hydrochloride, 28% PEG 3350, VAPOR DIFFUSION, HANGING DROP, temperature 303K
1	VAPOR DIFFUSION, HANGING DROP	5.5	303	0.1 M phosphate citrate pH 5.5, 0.15M sodium sulfate, 0.01M MgCl2, 1 M guanidium hydrochloride, 28% PEG 3350, VAPOR DIFFUSION, HANGING DROP, temperature 303K